I think Erebia neoridas
The pattern on the hindwing is a bit variable, but I think this falls within the range of patterns.
Some of the varities are shown here - http://www.eurobutterflies.com/species_pages/neoridas.htm
Sorry to butt in but I think this identification may be wrong. In my view this is a female aethiops which I agree is similar to neoridas but your butterfly is more similar to the drawing of female aethiops in my Collins than to neoridas. In particular, I see small white spots in the outer pale band on the hind wing S3 and S2. Collins shows no spots on the hind wing of neoridas but it does show small spots on the hind wing of aethiops female. Since you clearly photographed this specimen close to the specimen in http://www.nhm.ac.uk/natureplus/message/33784#33784 which I think is definitely aethiops male, in my view that makes aethiops femalethe most likely identification.
so the little white spot in the hind wing is a id key for the E. aethiops female, right?
The pattern of the underside wing look like (is the same) in the E. neoridas, but in this subject we have the little white spot in the hind wing, if in the E. neoridas and all his variants the little white spot are not present so I think you are right.
I don't have the Collins, I just have some books ...
I'm not so expert in Lepidoptera, but if Mike can confirm I would not have no more doubts.
Thanks for your help and the great explanations!